If you put Baltimore orioles in the search and enter the years 1885 through 1949 you will get all the players that are currently available. There just won't be any from 1903 through 1949 because there wasn't an oriole franchise. So orioles 1885 to 1949 is technically correct, but in practice it's 1885 to 1902.

Any player who played for any major leage team called the Baltimore Orioles, 1885-1949, is eligible. Only those years, only that city & nickname. Yes, most seasons up to 1949 there was no Baltimore Orioles. If you set the time frame 1885-1949, you will be fine.